Burglar-alarm attachment for windows and doors



W.J T. FAIRALL BURGLAR ALARM ATTACHMENT FOR WINDOWS AND DooRs Fild Feb. 9, 1926 l l l l l l l IIllllllTlllllJlllllllllI lllllllllllllllll Il W. TFairaZZ @MLNAAAL ATTORNEY Patentes nec. r, ieee. e i i ltifi unire stares Parent critics.v

WALTER T. FARALL, OF STOCKTON, CALFORNIA, ASSIGNOR TO W' H. FAIRALL, OF

GLENDALE, CALTFORTA.

BURGLAR-ALARM ATTACHMENT FOR WINDOWS AND DOORS.

Application filed February 9, 1926. Serial No. 86.991.

This invention relates to improvements For permanently mounting this device. in in burglar alarm devices, my principal obconnection with the lower one of'an ordiject being to provide a means for enabling nary pair of sash windows, I provide an an alarm device such as is shown in my angle bracket plateeadapted to rest against Patent No. 1,467,363, to be permanently the top horizontal faceand the inner ad- 60 mounted in conneet'ion with a door or winjacent vertical face of the upper frame 5 of dow, and which will enable said door or said lower window 6 near one side edge window to be kept closed or to be opened a thereof, andto be secured by screws''passed suflicient distance to piovide ventilation, through the two faces of said plate.

10 while still eifecting protection against an Ears 8 project outwardly from the verti- 65 intruder further opening the door or wincal member of the plate 4 to form bearings dow sulicient to permit him to enter, and for a pin 9 passed through the lower end without marring the woodwork. of the barrel'1, said barrel projecting be- A further object ,of the invention is to tween the ears. l5 ai'range such means in the form of an at- This pin may be permanently mounted or 70 tachment readily applied to the parts to be removable, as maybe desired. safeguarded, and which permits the alarm The upper end of the barrel 2 is providedv device to be readily disassociated from one with a rigid flat tongue 1() which/.projects movable member or the other so as to pertherebeyond for a lcertain distance, and isV 2G mit the door or window functioning in the then bent at a predetermined angle to pro- 75 usual manner when desired and without any ject toward the upper window 11. VAvvertiinterference. cal flat plate 12 is placed against the verti- A further object of the invention is to cal side framel?) of said upper window iii produce a simple and inexpensive device alinement with the bracket plate 4:, and is and yet one which will be exceedingly eifecheldin place by screws 14. This'plate has tive for the purpose for which it is designed. a plurality vof vertically spaced transverse These objects I accomplish by means of slots 15 transversely alined with the outer such structure and relative arrangement of end of the tongue. parts as will fully appear by a perusal of This plate is so disposed that when the the following specification and claims. windows .are closed as shown in Fig. 1, the Tn the drawings similar characters of reftongue 10 when the barrels are in their norn erence indicate corresponding parts in the mally slack relation, will engage the lowerseveral views: f most slot. This arrangement enables the Fig. 1 is a fragmentary outline of a pair upper window to be lowered or the lower of ordinary sash Vwindows inY their closed window to be raised a distance equal to the 'J0 position showing my alarm device and its space' between the end-most slots, and still attachment means applied thereto. enable. the tongue'to be engaged with a slot Fig. 2 is a fragmentary cross section of and the window thus held from further the windows partly open showing my strucopening. ture applied thereto in holding position; Tn order to prevent the tongue froinpos- 9 Fig. 3 is an enlarged fragmentary view sibly being jarred out of a slotthe horizonof a catch plate and the cooperating tongue tal faces of the tongue at their outer ends on one end of the alarm device. preferably flare outwardly somewhat as Referring now more particularly to the shown at 16, while the slots are undercut as characters of reference on the drawings, the at 17. im) alarm device itself is preferably identical In operation it will be evident that when with that shown and covered in the above the device is thus positioned and the tongue mentioned patent and consists essentially is engaged with any slot, a pressure exerted of a tubular barrel 1 with another barrel 2 to further lower the upper window or raise 59 telescopically mounted therein for limited the lower window will cause the barrels of sliding movement. The barrel 1 is provided the alarm device to telescope into each other, with a slot 3 adjacent one end to receive a Causing the cartridge to be exploded. Even blank cartridge, which as fully set forth in if the cartridge is omitted however, the desaid patent, explodes when said barrelsV are vice serves as a sufficient check against open- 5 moved toward each other to their limit. ing of the window, since the barrels can only n@ telescopea limitedamount and then become a rigid immovable unit. lt will be noted that when the pressure thus applied to the Window is imparted to the plate 13 and bracket al, the strain on the various screws is a shearing rather than a tensional one. There is therefore no tendency for the screws to pull ont of the Wood and render the device inoperative.

-When the rdevice Vis not in use the tongue is .disengaged V.from the plate-slot ,and the alarm ydevice is turned down4 on ,its zpivotal pin), as shown in dotted lines in Fig. 2 so that it will hang down alongsidethe .lower- Windew. trame-.-

Inthe pin..9 is removable Vthe alarm device itsel-tmay kbe removed at any Vtimeqwit-h; out disturbing lthe bracket and slotted-plate.'v

Though-l have shownthe device as yused in connection with sash Windows, :it mayy be vusedwWith .equal efficiency in connection. With easement and .otl1er..\vindoxvs,..aswell as with doors.

In. the latter ...caserthe `V`bracket. for the alarm device is yflat `as rshown in the.,pre.-' viouspatent, :andthe slotted: plate would be mountedfonthe floor inwardly oithe door.. in `line Withfthe 'tongue ,on the device..

F rom. the foregoing description. it Will vbe readily seen sthat I have produced4 such a device. as substantially .fuliillsithe objects of. the invention as .set .forth herein.

While thi-sspecicatien `setsaiitorth vin Vdetailrthegpresent and preferred construction of-the..device,..still in practice such .devia-.. tions-,from ,such detail may .beresortedto as do not form a departi'lrei'rom the spirit of thenvention, as defined by the .appended claims;

Having thus described;- my invention. what. I claim .as .neWv-and`V vuseful .and-.desirezto secure; by .Lett-ers Patentis c l. A. burglarialarm'and checktattachment. for: relatively movable members .including 'with an-alarm device. abracket. pivoted onto. one; end'wof the..clev.ic.ef and adapted to. be

mounted onto one lmember, a plate having a transverse slot adapted 'for attachment to the other member in allnement with the device,v said device .normally sloping trollnflits f plvoted end .toward the plate at an acute vent movement .o the niovablefmember in f either :direction when the slot..

2. burglar alarm and` check attachment.'

for relatively movable` members including with Aan alarm device, a bracket V pivoted to. one end. ot said ydevice :and -adapted toV be' mounted` onto onemen'iber, a `plate having a slot-adaptedfor attachment to theother member in alinement with said device, and a tongue on the end o1 the device opposite to.l

the bracket for detachable engagement With the slot,. the horizontal faces of .the slot having an inward diverging slant and the corresponding faces ofthe 'tongue having an outward .ii-are, whereby to preventT accidental cisplacementl `oit theftongne from the slot.

when engaged therewith.

3. A burglar alarm andfrchecli attachment ior Windows comprising with an alarm def vice, a plate having a slot arranged to bei fixed Von .thefframe ofthe upper window7 a member onone end of the'alarm device yfor engagen'rent-with'the slet.V a. bracket for attachment .to the levier Window frame in alinement withv the plate, and av pivotal connection between the,braclret and `the;other end of the alarm device; said pivotal connection bei-ng so located with respect to:

the inner face of the lower Window frame as to `permit said-alarm device tobeturned down to lie vertically valong said frame When said .member iis Vdisengaged from the. slo.t;.l

In testimony lwhereofI'a'llix my signature.

WALTER T. FARALL."`

.tongue is in athe 1V 

